Even though you'll see a whole bunch of constructs today and even throughout the course, you will find that there's often multiple ways to implement something, and it will be up to us to guide you toward better design and making in giving two different options the better choice as time passes.

即使今天乃至整个课程中,你们将了解到很多的结构，你将发现,这里有很多的方法来处理一些事情，这将引导你们做更好的设计,随着时间的推移，从两个不同的选择中,选择一个更好的。

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There are multiple examples during the course of this year in which that's been the case.

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Sometimes there are multiple trucks, of course, all with the engines running constantly while they sit unmoving.

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Because of the this change, and because the data and safety monitoring board reviewed the data multiple times over the course of the study, the threshold for statistical significance was lowered to 0.036.

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